Frame saw



April 13, 1937.

E. 'LOF 2,077,119

FRAME SAW Filed Oct. 9, 1935 Patented Apr. 13, 1937 UNITED STATES FRAMESAW Emil Liif, Stockholm, Sweden Application October 9, 1935, Serial No.44,280 In Sweden October 8, 1934 1 Claim.

This invention relates to frame saws and more specifically to improvedguiding means for the log on the back side of the saw.

It is known to use on the back side of frame saws guiding meansconsisting of knives or the like, which engage the cuts made in the logby the saw blades and guide the work piece until it is fully cut. Suchknives have hitherto been carried by holders secured to the floor belowthe g log whereby the removal of the slabs and side boards cut off fromthe log in the sawing operation and the adjusting of the saw frame wasinterfered with.

The object of this invention is to remove said drawback by journallingthe guiding knives above the log on a horizontally swingable framecarrying the upper feeding roller on the back side of the frame saw.

In the accompanying drawing I have shown an embodiment of the invention.Fig. 1 shows a side view and Fig. 2 a plan of a frame saw plant with theimproved guiding arrangement.

Referring to the drawing, I is the frame saw which in well-known manneris provided with two pairs of feeding rollers 2, 3 and 4, 5respectively, the upper roller 5 of the roller pair on the back side ofthe saw frame being journalled in a frame I which is swingablehorizontally on a vertical shaft 6. The frame I carries two brackets 8,9 which are connected by rods In, H on which are secured plates I2, I3,said plates being laterally adjustable and forming holders for guidingknives l4, l5. The latter extend freely downwards from said holders toengage from above the cuts in the log passing through the saw, thusguiding the work piece on the back side of the saw. As the holders ofthe knives are placed above thelog the slabs and side boards cut fromthe log can fall down freely without 5 being checked by the knives ortheir holders. When the roller 5 with its frame is swung out laterallyfor enabling the adjusting and supervision of the saw frame the guidingmeans are also swung off whereby the attendance of the 10 saw isfacilitated.

To support and carry away the work piece on the back side of the framesaw a transporting device is provided consisting of beams l6 supportingthe middle block of the log cut and on 1 each side of said beams a beltconveyer ll for carrying away the slabs and the side boards cut off fromthe log. To facilitate the feeding of the middle block mechanicallydriven rollers l8 are provided between the beams I6. 20

The invention is not limited to the construction shown in the drawingbut the constructional details may be varied without departing from theprinciple of the invention.

What I claim is: 25

A frame saw, comprising an upright stationary main frame, a horizontallyswingable frame connected to said main frame and positioned above thepath of the work, and guiding knives supported by said swingable frameand extending 30 freely downwardly into the path of the work whenthe-supporting frame is in operative position.

